TM 5-4210-220-124-18. PUMP, PIPING, AND VALVES-Continued4-18.12 Actuator Repair-ContinuedINSPECTION(1)Discard all O-rings, seals and gaskets.(2)Inspect all sealing and mating surfaces for nicks, burrs, or scratches thatmay damage new seals during assembly.(3)Inspect cylinder (9) inner bore and piston (25) for scoring, pitting, dents, orcracks. Replace both components if one is found to be defective.(4)Install driver (17) into cylinder body driver hole and check for out-of-roundor looseness between the two components. Replace cylinder body anddriver if play exceeds 0.125 in. (3.175 mm).4-250